Valve operating device



(No Model.) 2 Sheets-Sheet 1.

0'. OTIS. I VALVE OPERATING DEVIGE.

'NO. 528,385. Patented Oct. 30, 1894.

INVENTOI? ww ATTORNEYS.

HO WPZSHINBTON, D. C.

(No Modl.) 2 Sheets-Sheet 2.

0. OTIS. v v VALVE OPERATING DEVICE.

No. 528,385. Patented Oct. 30,1894.

na: Nonms PEI'ERS co. wow-Lama, WASHINBTON u c UNITED STATES PATENTOFFICE.

CHARLES OTIS, OF NEW YoRKQN. 'Y.

VALVE-OPERATING DEVICE.

' SPECIFICATION forming part of Letters Patent No. 528,385, datedOctober 30, 1894.

Application filed June 23, 1892. Serial No. 4-.3'7i'7 N 111011 1 To aZZwhom it may concern.-

Be it known that I, CHARLES OTIS, of New York city, in the county andState of New York, have invented a new and Improved Valve-O peratin gDevice, of which the following is a full, clear, and exact description.

The invention relates to means for automatically opening and closing thethrottle valve of the pump by which the water for operating the elevatoris pumped, the devices being actuated to open and close the valve by therising and falling of a float in one of the tanks.

The invention consists in the novel means hereinafter particularlydescribed and defined in the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is aside elevation illustrating the invention applied to thesteam supply pipe of a pump, and indicating the arrangement of the samein connection with a float in the lower or discharge tank, the partsbeing in position after closing the valve. Fig. 2 is a similar viewshowing the parts in position after opening the valve; and Fig. 3 is adetail sectional view on line 33, in Fig. 2.

In the drawings, the pipeA represents the steam supply pipe of anysuitable pump having the usual throttle valve, to the stem act which issecured the usual valve lever A, and in the discharge tank B- is shown asuitable float B, said float acting through the improved valve operatingdevices, to open the valve when the water in the discharge tank rises,and to throttle the same when the level of the water falls as the wateris pumped from the discharge tank to the upper or storage tank. Thus, tothe valve stem aor other suitable stud, a yoke O is pivoted at one sideof the center the lower arm or member C. of which forms a support and atrack for a trolley weight D, the weight proper being suspended by itshook d, from the bail or yoke d of the traveling wheel or roller D. Atone end the yoke is open for the removal or replacing of the travelingweight, the separated ends of the upper and lower arms being united by alink 0 which is loosely connected the chain B being connected throughthe short chain or cord 1) with one end of said yoke. There is furtherconnected with the yoke near one end, as'at f, a weighted chain or cordf, which passes over a suitable idler f the weight F of which cord actsas a counterweight to the traveling weight D, to prevent undue shockwhen the movement of the traveling weight is arrested.

In the operation of the device, the parts being in the position shown inFig. 1, and the valve thus closed, as the water is discharged into thetank Bafter operating the elevator, the float B gradually rises, whichpermits the weight E to fall and rock the yoke C. The slot in the triparm 0 of the yoke permits the latter to rock a considerable distancewithout affecting the valve lever A, but as the water continues to risein the discharge tank and the yoke is so rocked as to bring the track 0'to a position inclined in the opposite direction to that it occupied inFig. 1, the weight D will quickly travel to the opposite end of theyoke, causing the latter to assume the position shown in Fig. 2, andthrow the valve lever to open the valve, all shock by the travelingweight being prevented by the smaller counteracting weight F. The shockto the traveling weight and the yoke is further avoided by reason of theswinging connection of the weight D to its traveler D, since by thisconstruction the whole weight including the traveler wheel is notinstantly arrested, but the weight may swing on the traveler. Thus itwill be seen that the valve is not moved until practically the fullvolume of water is discharged, at which time the valve will be thrownwide open at once to start the pump. The pump having been thus started,the level of the wa ter in the tank B will gradually fall and with itthe float B, which will raise the lowered end of the yoke 0, against theaction of weights D, E. When now, the upper tank is substantially filledthe float B will have so far rocked the yoke O as to cause the travelingweight D to return to the former position shown in Fig. 1 to throttlethe valve, and the latter will occurimmediately upon the tilling of theupper tank, as at the time the upper tank is filled, the water will havefallen sufficiently in the discharge tank B to cause the travelingweight to move.

The devices are also applicable to the pumps of water supply tanks, feedpumps, and the like.

Having thus fully described my invention, 1 claim as new and desire tosecure by Letters Patent- 1. In a valve operating device, thecornbination of a yoke comprising two arms separated at one end andhaving a link for connectin g said separated ends, a shifting weightadapted to travel on said yoke, and a float operated weight connectedwith said yoke substantially as described.

2. In valve operating devices, the combination with a yoke pivoted torock, and having connection with the valve to be operated, of a float, aweighted cord or chain controlled by said float and connected with theyoke, a shifting weight on the yoke, and a counteracting weightconnected by a cord or chain to the yoke, substantially as described.

3. In valve operating devices, the combination with the valve, of a yokemounted to rock, and having an arm engaging the valve arm, a floatoperated weight connected with such yoke and a roller traveling on suchyoke and having a suspended weight adapted to swing relatively to theroller, substantially as described.

CHARLES OTIS.

Witnesses:

THEODOR KATZ, JOHN E. RIOKER.

